Getting Started

Send your first FCM push notification in under 2 minutes — no backend code, no SDK setup, just your browser.

What is FCMDebug?

FCMDebug is a free, browser-based tool for testing Firebase Cloud Messaging (FCM) push notifications. Instead of writing server code or using cURL commands, you can:

• Upload your service account key and send real notifications instantly

• Target devices, topics, or conditions with a clean visual interface

• See the full API response including error details and message IDs

• Validate your JSON payloads before sending

It uses the official FCM HTTP v1 API under the hood — the same API your production server would use.

Quick Start

1. Create a Firebase Project

1. Go to console.firebase.google.com and sign in with your Google account

2. Click Create a project and enter a project name

3. Click Continue

4. Firebase will ask if you want to enable Gemini AI assistance for your project. This gives you AI-powered help inside the Firebase console — useful for troubleshooting, FCM campaign insights, and more. Enable it if you'd like, then click Continue

5. Firebase will ask if you want to enable Google Analytics for your project. This is optional for FCM testing — enable or disable it based on your needs, then click Continue

   • If you enabled Google Analytics, you'll be taken to a Configure Google Analytics screen. Under Choose or create a Google Analytics account, select Default Account for Firebase (or an existing account). Firebase will automatically create a new Analytics property linked to your project. Click Create project to finish.

   • If you disabled Google Analytics, you'll go straight to project creation — click Create project.

6. Wait for provisioning to complete, then click Continue

Already have a project? Skip this step and head to the Service Account Setup guide.